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/** \file genericstructs.h defines the class that handles structs and classes for plugins.

 */

#ifndef __genericstruct_h__

#define __genericstruct_h__

#include "yacasbase.h"

#include "genericobject.h"

#include "lispassert.h"

/** \class GenericStruct This class maintains a pointer to some arbitrary

 *  object (which can be any thing). The plugin is responsible for supplying

 *  functions for manipulating such structs/classes/arrays. The Yacas core

 *  then needs to know nothing about the internals of such a struct.

 *

 *  The struct is represented by a void pointer to the struct, a pointer

 *  to a function that can clean up the struct (used when automatically

 *  deleting the object), and a pointer to a text string representing the

 *  type of the object (useful for testing if the type passed as an argument

 *  to a function is correct).

 */

class GenericStruct : public GenericClass

{

public:

  GenericStruct(LispChar * aTypeName, void* aData, void (*aDestructor)(void*));

  virtual ~GenericStruct();

  virtual LispChar * Send(LispArgList& aArgList);

  virtual LispChar * TypeName();

  inline void* Data() {return iData;}

private:

  GenericStruct(const GenericStruct& aOther) : iData(NULL),iTypeName(NULL),iDestructor(NULL)

  {

    // copy constructor not written yet, hence the assert

    LISPASSERT(0);

  }

  GenericStruct& operator=(const GenericStruct& aOther)

  {

    // copy constructor not written yet, hence the assert

    LISPASSERT(0);

    return *this;

  }

public:

  void* iData;

  LispChar * iTypeName;

  void (*iDestructor)(void* data);

};

#endif